MMC Norilsk Nickel (Nornickel) is a Russian mining and metallurgical company. It is one of the world’s largest producers of nickel and palladium, and is also a significant producer of copper, cobalt, and platinum. The company is headquartered in Moscow and is listed on the Moscow Stock Exchange. Nornickel was founded in 1993 and has operations in Russia, Finland, South Africa, Botswana, and Brazil. The company is known for its environmentally damaging practices and has been the subject of criticism and protests over the years due to its impact on the environment, including the release of large amounts of sulfur dioxide and other pollutants into the air.